find the solution for a squared-2a-8=0

i would like you to show me how to do these problems.
in Algebra 2 Answers by Level 1 User (200 points)

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1 Answer

a^2 - 2a - 8 = 0

use the quadratic formula:

a = (2 +/- SQR(4 - 4(1)(-8)))/2(1)

a = (2 +/- 6)/2

a = -2, 4
by Level 6 User (23.1k points)

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